依存關系描述句子中詞與詞之間的各種語法關系。一句句子可以表示成如下的依存關系樹。
Bell, based in Los Angeles, makes and distributes electronic, computer and building products.
CoreNLP中的依存關系有50來種（都是二元的關系），下面總結：
1. acomp: adjectival complement
用于動詞的形容詞補語。
動詞-->形容詞
“She looks very beautiful.” acomp(looks,beautiful)2. advcl: adverbial clause modifier
修飾動詞的狀語從句。
主句中的動詞-->從句中的主要成分
“The accident happened as the night was falling” advcl(happened, falling)**3. advmod: adverb modifier **
（非從句）的副詞。
被修飾者-->副詞
“Genetically modified food” advmod(modified, genetically)4. agent: agent
用于補充過去時態的動詞，通常跟著介詞“by”。
過去時態的動詞-->補充的名詞
“The man has been killed by the police” agent(killed, police)5. amod: adjectival modifier
修飾名詞短語的形容修飾語。
名詞短語-->形容修飾語
“Sam eats red meat” amod(meat, red)6. appos: appostional modifier
修飾名詞短語的名詞短語（通常緊挨著）
被修飾的名詞短語-->名詞短語
“Bill ( John ’s cousin ) ” appos(Bill, cousin)7. aux: auxiliary
助動詞
動詞-->助動詞
“Reagan has died ”aux(died, has)8. auxpass: passive auxiliary
過去式的助動詞
動詞-->過去式的助動詞
“Kennedy has been killed” auxpass(killed, been)9. cc: coordination
第一個并列詞--> 協同關系詞
“Bill is big and honest” cc(big, and)10. ccomp: clausal complement
被補充說明的詞-->補語從句的主要成分（決定語義的詞）
“He says that you like to swim” ccomp(says, like)11. conj: conjunct
用協同連詞（and、or）連接的兩個元素
第一個元素-->第二個元素
“Bill is big and honest” conj(big, honest)12. cop: copula
系動詞
表語-->系動詞
“Bill is big” cop(big, is)13. csubj: clausual subject
主語從句
謂語動詞-->主語從句中的主要成分
“What she said makes sense” csubj(makes, said)14. csubjpass: clausal passive subject
主從被動關系
謂語動詞（被動）-->主語從句中的主要成分
“That she lied was suspected by everyone” csubjpass(suspected, lied)15. dep: dependent
系統無法識別的依賴關系
“Then, as if to show that he could, . . . ” dep(show, if)16. det: determiner
限定詞
名詞短語-->限定詞
“The man is here” det(man, the)17. discourse: discourse element
句子主要部分-->感嘆詞、語氣詞
"Iguazu is in Argentina :) " discourse(is, :))18. dobj: direct object
動詞（給予）-->直接賓語
“She gave me a raise” dobj(gave, raise)19. expl: expletive
從句的主要動詞-->there
“There is a ghost in the room” expl(is, There)20. goeswith: goes with
兩個本來應該連在一起的詞
第二部分-->第一部分
They come here with out legal permission gosewith(out, with)21. iobj: indirect object
動詞（給予）-->間接賓語
“She gave me a raise” iobj(gave, me)22. mark: marker
從句的主要成分-->從句修飾的主體（標記語）
”He says that you like to swim“ marker(swim,that)23. mwe: multi-word expression
固定搭配
“I like dogs as well as cats” mwe(well, as)24. neg: negation modifier
否定修飾
被修飾詞-->否定詞
“Bill is not a scientist” neg(scientist, not)25. nn: noun compound modifier
名詞合成修飾
“Oil price futures” nn(futures, oil) nn(futures, price)26. npadvmod: noun phrase as adverbial modifier
名詞短語作為副詞修飾
副詞修飾的詞-->名詞
“The director is 65 years old” npadvmod(old, years)27. nsubj: nominal subject
名詞性主語
句子的主要成分（一般是動詞）-->主語
“Clinton defeated Dole” nsubj(defeated, Clinton)28. nsubjpass: passive nominal subject
被動的名詞主語
句子的主要成分-->主語（被動）
“Dole was defeated by Clinton” nsubjpass(defeated, Dole)29. num: numeric modifier
數詞
名詞-->數量
“Sam ate 3 sheep” num(sheep, 3)30. number: element of compound number
復合形式的數詞
“I have four thousand sheep” number(thousand, four)31. parataxis: parataxis
并列
主要動詞-->并列句的主要成分
“The guy, John said, left early in the morning” parataxis(left, said)32. pcomp: prepositional complement
介詞的補語
介詞-->從句的主要成分
“We have no information on whether users are at risk” pcomp(on, are)33. pobj: object of a preposition
介詞的賓語
介詞-->賓語
“I sat on the chair” pobj(on, chair)34. poss: possession modifier
所屬修飾
擁有者-->擁有物品
“their offices” poss(offices, their)35. possessive: possessive modifier
所屬修飾
擁有者-->'s
“Bill’s clothes” possessive(Bill, ’s)36. preconj: preconjunct
名詞短語的前部-->連詞前面出現的詞（both、either、neither）
“Both the boys and the girls are here” preconj(boys, both)37. predet: predeterminer
名詞短語的前部-->在限定詞前面出現的詞
“All the boys are here” predet(boys, all)38. prep: prepositional modifier
介詞修飾
名詞-->介詞
“I saw a cat in a hat” prep(cat, in)39. prepc: prepositional clausal modifier
介詞從句修飾
主句主要詞-->從句主要詞
“He purchased it without paying a premium” prepc without(purchased, paying)40. prt: phrasal verb particle
動詞短語
“They shut down the station” prt(shut, down)41. punct: punctuation
標點
“Go home!” punct(Go, !)42. quantmod: quantifier phrase modifier
數量短語
數量-->數量修飾
“About 200 people came to the party” quantmod(200, About)43. rcmod: relative clause modifier
關系從句修飾
名詞短語的第一個詞-->關系動詞的主要詞
“I saw the man you love” rcmod(man, love)44. ref: referent
指代關系
被指代詞-->指代詞
“I saw the book which you bought” ref (book, which)45. root: root
根節點
“I love French fries.” root(ROOT, love)46. tmod: temporal modifier
時間修飾
句子主要詞（通常是動詞）-->時間詞
“Last night, I swam in the pool” tmod(swam, night)47. vmod: reduced non-finite verbal modifier
非謂語動詞（to do）修飾
修飾對象-->非謂語動詞
“Points to establish are . . . ” vmod(points, establish)48. xcomp: open clausal complement
開放從句（缺少主語的從句）補語
開放從句的補足對象（動詞）-->開放從句的動詞
“He says that you like to swim” xcomp(like, swim)49. xsubj: controlling subject
開放從句的動詞-->實際控制對象（名詞）
“Tom likes to eat fish” xsubj(eat, Tom)
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